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听力原文:Not long ago, some of you may have read about the team of mountain climbing scien

听力原文: Not long ago, some of you may have read about the team of mountain climbing scientists who helped to recalculate the elevation of the highest mountain in the world, Mount Everest. Of course the elevation of Mount Everest was determined many years ago using traditional surveying methods. But these scientists wanted to make a more precise measurement, using a new method that takes advantage of recent advances in technology; it's called the Glob al Positioning System. The Global Positioning System uses 24 satellites that circle the earth. Each of the satellites is constantly sending out signals, and each signal contains important information that can be used to determine the longitude, latitude and elevation at any point on the earth’s surface. Well in order to use the system to calculate a mount of Everest's elevation, scientists need to put a special receiver on the summit to receive signals from the satellites. The problem with this was that in the past, the receivers were much too heavy for climbers to carry. But now these receivers have been reduced to about the size and weight of a hand-held telephone, so climbers were able to take the receiver to the top of the Everest, and from there, to access the satellite system signals that would allow them to determine the precise elevation. And it turns out that the famous peak is actually a few feet higher than us previously thought.

(33)

A.The advantages of traditional surveying methods.

B.Using satellites to communicate with mountain climbers.

C.Obtaining new information about a mountain.

D.Controlling satellites from the top of a mountain.

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更多“听力原文:Not long ago, some of you…”相关的问题
第1题
听力原文:The year is 2501, and the Earth is desperately short of fuel. All Earth's coal, o

听力原文: The year is 2501, and the Earth is desperately short of fuel. All Earth's coal, oil and wood have been used up long ago, and scientists have been sent to the ends of the universe in search of alternative forms of energy.

A rich and powerful civilization has been discovered on the planet Jupiter, and Earth is supplied with fuel by constant supply fleets from that planet, but the price is very high. Unless it discovers an alternative source of energy soon, civilization on Earth will fail, and its inhabitants will have to move to other planets where they will be little more than slaves. Then Jupiter will take possession of Earth-- the most beautiful, most desirable planet in the universe.

Human scientists have been sure for a long time that Jupiter possesses a method of creating constant energy and now ten explorers on a secret mission from Earth have discovered the secret--a kind of heavy, green dust which will change salt water to high grade petroleum. This dust covers a large part of Jupiter's surface, and just a few pounds of it could solve the world's energy crisis since it would reproduce itself continuously in Earth's atmosphere.

(23)

A.Explorers.

B.Doctors.

C.Teachers.

D.Coal-miners.

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第2题
听力原文:Why don't birds got lost on their long migratory flights? Scientists have puzzled

听力原文: Why don't birds got lost on their long migratory flights? Scientists have puzzled over this question for many years. Now they're beginning to fill in the blanks.

Not long ago, experiments showed that birds rely on the sun to guide them during daylight hours. But what about birds that fly mainly by night? Tests with artificial stars have proved conclusively that certain night-flying birds are able to follow the stars in their long-distance flights.

One such bird—a warbler—had spent its lifetime in a cage and had never flown under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The bird's cage was placed under an artificial star-filled sky at migration time. The bird tried to fly in the same direction as that taken by his outdoor cousins. Any change in the position of the make-believe stars caused a change in the direction of his flight.

Scientists think that warblers, when flying in daylight, use the sun for guidance. But the stars are apparently their principal means of navigation. What do they do when the stars are hidden by clouds? Apparently, they find their way by such landmarks as mountain ranges, coast lines, and rivet courses. But when it's too dark to see these, the warblers circle helplessly, unable to get their bearings.

(33)

A.Birds have to be taught to navigate.

B.A bird that has been caged will not.

C.Some birds cannot fly at night.

D.Some birds seem instinctively to follow the stars when flying at night.

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第3题
听力原文:W: Well, Bob James, what a surprise! It's nice to see you again!M: Hello, Margare

听力原文:W: Well, Bob James, what a surprise! It's nice to see you again!

M: Hello, Margaret! My gosh ! How long has it been? Wasn't it a year ago Christmas, the last time we saw you?

W. You know, I think you' re right. How's your wife and the kids?

M: Oh, they' re fine. Billy fell down and broke his leg a few months ago. But other than that, there's been nothing special.

W: Wasn't Joey learning to play the violin? Seems to me I remember something about that.

M: Oh, he's given that up. He's all excited about sports now. Actually I don't mind.

W: And your wife, what is she doing these days?

M: She's going to a night school on Mondays and Thursdays. She's studying French now. But last year she studied typing and sewing. I think she just enjoys going to school. Next it'll probably be cooking.

W: How nice for her. Oh, I'm sorry, I've got to rush. But say hello to Mrs James for me, will you?

M: Sure I will, and remember me to your husband, goodbye.

When did the two people see each other last?

A.More than two years ago.

B.Last Christmas.

C.Last birthday party.

D.A long time ago.

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第4题
听力原文:Interviewer: Excuse me. I wonder if you'd mind answering a few questions. I'm doi
ng a survey about foreigners studying in Britain.

Interviewee: Oh, I see. Well, no, I don't mind at all.

Interviewer: Oh, good. Where are you from, please?

Interviewee: I'm sorry. I didn't hear ...

Interviewer: What country are you from?

Interviewee: People's Republic of China, Shanghai, actually.

Interviewer: Could you tell me how long you've been here?

Interviewee: Yes, about 3 weeks.

Interviewer: I see, and how long will you be studying?

Interviewee: I'm not sure exactly, but I think about 2 months altogether.

Interviewer: And ... er... may I ask how old you are?

Interviewee: Yes, of course, I'm thirty-four.

Interviewer: What kind of educational course you are doing here?

Interviewee: I'm on a language improvement course run by UNESCO.

Interviewer: Very interesting! How long ago did you start to learn English?

Interviewee: Oh, I can't remember exactly, about 20 years ago, I think!

Interviewer: Fine, well, thank you very much. Enjoy you stay in London.

Interviewee: Thank you. Goodbye.

(27)

A.Foreigners' study in Britain.

B.Chinese people's studying in Britain.

C.Educational courses in Britain.

D.Foreigners' language learning in Britain.

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第5题
听力原文:In ancient times, many people believed tile earth was a flat disc. Well over 2,00

听力原文: In ancient times, many people believed tile earth was a flat disc. Well over 2,000 years ago, rite ancient Greek philosophers were able to put forward two good arguments proving that it was not. Direct observations of heavenly bodies was the basis of both these arguments. First, the Greeks knew that during eclipses of the moon, file earth was between the sun and the moon, and they saw that during these eclipses, the earth's shadow on the moon was always round, they realized that this could be true only if the earth was spherical. If tile earth were a flat disc, then its shadow during eclipses would not be a perfect circle, it would be stretched out into a long ellipse. Tile second argument was based on what the Greeks saw during their travels. They noticed that the North Star, or Polaris, appeared lower in the sky when they traveled south, in more northern regions, the North Star appeared to them to be much higher in file sky. By the way, it was also from this difference in the apparent position of the North Star that the Greeks first calculated the approximate distance around the circumference of the earth, a figure recorded in ancient documents says 400,000 stadia, that's the plural of the word stadium. Today, it's not known exactly what length one stadium represents, but let's say, it was about 200 meters, the length of many athletic stadiums. This would hake the Greek' s estimate about twice the figure accepted today, a very good estimate for those writing so long before even the first telescope was invented.

(33)

A.How ancient philosophers measured the distance between heavenly bodies.

B.How ancient philosophers explained the cause of an eclipse of the Moon.

C.Why ancient philosophers thought the Earth was a sphere.

D.Why ancient philosophers thought the Earth moved around the Sun.

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第6题
听力原文:Ancient man, living in colder climates, is credited with making the first shoes,

听力原文: Ancient man, living in colder climates, is credited with making the first shoes, by adding material to the top of the crude "sandals" his neighbors in warmer climates had invented. He did so out of necessity, to give his feet additional protection from the cold.

Early man, in warmer climates, invented the sandal to protect his feet from sharp rocks, and did so by strapping a mat of woven grass, a strip of animal hide, or a slab of flat wood to his feet with "thongs" he cut out of animal hide. Some even pulled the thongs between the toes and tied them around the ankles to tighten the fit of these crude sandals.

Wealthy ancient Egyptians wore sandals as long as 5,000 years ago, eventually everyone began wearing them, and the Egyptians designed differently. Ancient Greeks invented the boot, by replacing the sandal's thongs with solid leather. Many of these crude shoes have endured and are still worn today. Common examples include the sandals the ancient Greeks and Romans wore, the moccasins American Indians wore, and the clogs people in Holland still wear.

In the Middle Ages, around the time the Crusades began, modem shoes appeared on the scene. The Crusaders, who went on long treks, needed durable, comfortable shoes that people then began making for this purpose.

(23)

A.To give his feet additional protection from the cold.

B.To make the sandals wear-resisting.

C.To match his trousers.

D.To make the sandals look more beautiful.

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第7题
听力原文:W: I left my office at 4.-30. what time is it now?M: Just five o'clock, but my wa

听力原文:W: I left my office at 4.-30. what time is it now?

M: Just five o'clock, but my watch is five minutes faster.

Q: How long ago' did the woman leave her office?

(14)

A.5 minutes.

B.25 minutes.

C.30 minutes.

D.35 minutes.

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第8题
听力原文:M: I wish I could see George here.W: He was planning to come. But a moment ago, h

听力原文:M: I wish I could see George here.

W: He was planning to come. But a moment ago, his wife called to say that he had to take his father to the hospital.

Q: Who was ill?

(17)

A.George's brother.

B.George's wife.

C.George's father.

D.George's father-in-law.

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第9题
听力原文:What will man be like in the future--in 5,000 or even 50,000 years from now.'? We

听力原文: What will man be like in the future--in 5,000 or even 50,000 years from now.'? We can only make a guess, of course, but we can be sure that he will be different from what he is today. For man is slowly changing all the time. Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today. Now, on average, men are about three inches taller. Five hundred years is a relatively short period of time, so we may assume that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain's capacity. As time goes on, however, we shall have to use our brains more and more--and eventually we shall need larger ones! This is likely to bring about a physical change too: the head, in particular the forehead, will grow larger. Nowadays our eyes are in constant use. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over a very long period of time it is likely that man's eyes will grow stronger. On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modem life.

(30)

A.Future man's life style.

B.Future man's thoughts.

C.Future man's appearance.

D.Future man's education.

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第10题
听力原文:M: Who do you work for at the moment, Ms Mann?W: Um, I work for the BBC World Ser

听力原文:M: Who do you work for at the moment, Ms Mann?

W: Um, I work for the BBC World Service.

M: Ah, and how long have you worked for the BBC?

W: I've been with the BBC for five years. Yes, exactly five years.

M: And how long have you been their German correspondent?

W: For two years.

M: And what did you do before the BBC?

W: I worked as an interpreter for the European Union.

M: As you know, this job is based in Geneva. Have you ever lived abroad before?

W: Oh, yes, yes, I have.

M: And when did you live abroad?

W: Well, in fact, I was born in Argentina and I lived there until I was eleven. Also, I lived and worked in Brussels for two years when I was working for the E.U.

M: Mmm...That's interesting. Have you traveled much?

W: Oh yes, yes, indeed. I've traveled all over western and eastern Europe, and I've also been to many parts of South America.

M: Mmm... And why did you go to these places?

W: Well, mostly for pleasure, but three years ago I went back to Argentina to cover various political stories for the BBC.

(20)

A.She has been working for the BBC for five years and working as their German correspondent for two years.

B.She has been working for the BBC for two years and working as their German correspondent for eleven months.

C.She bas been working for the BBC for four years and working as their German correspondent for one year.

D.She has been working for the BBC from eleven years ago and working as their German correspondent for five years.

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